Reinforcement contrast effects on the rewarding and aversive components of intracranial stimulation |
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| Authors: | Dale M. Atrens Francisca Von Vietinghoff-Riesch Aghop Der-Karabetian |
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| Affiliation: | Department of Psychology, University of Sydney, Sydney 2006 N.S.W., Australia;The American University of Beirut, Beirut, Lebanon |
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| Abstract: | Rats performing a free-operant locomotor response in a shuttlebox to initiate and then escape medial diencephalic stimulation were tested daily on a randomized sequence of three stimulation intensities. In spite of a 1-hr interval between stimulation intensity changes, substantial and graded reinforcement contrast effects were obtained. “Elation” effects were obtained both on the rewarding (latency to initiate) and the aversive (latency to escape) components of stimulation whereas “depression” effects were found only on the measure of reward. |
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| Keywords: | Requests for reprints should be sent to Dale M. Atrens Department of Psychology University of Sydney Sydney 2006 N.S.W. Australia. |
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